Police are investigating after a 17-year-old boy and girl were held up with a knife and had the boy’s designer coat, hat, headphones and wallet taken from him on December 29, 2025.
The two were on board a train between Grove Park and Bromley North at around 6.30pm, when they were approached by the man.
After the robbery, the man got off the train at Bromley North with the items and ran out of the station.
CCTV images have been released of a man who police believe may have information that could help their investigation.
Anyone who recognises him is asked to contact BTP by texting 61016, or by calling 0800 40 50 40 quoting reference 462 of 29 December.
Alternatively, contact Crimestoppers anonymously on 0800 555 111.
